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Redhat / CentOS / Fedora Linux Open Port

By default iptables firewall stores its configuration at /etc/sysconfig/iptables file. You need to edit this file and add rules to open port number. This file only avilable under Red Hat Enterprise Linux 3 / 4 / 5 and above => Old Red hat Linux version => CentOS 4 and above => Fedora Linux   Open  Full Article…